EPM vs BPM vs activity-based costing
Three ways to look at a process. Process mapping shows how it works, costing shows what it spends, and Economic Process Modelling shows what each part is worth. Here’s how they differ, and when to use each.
Three methods. Three different questions.
| Compare | Process mapping (BPM) | Activity-based costing | Economic Process Modelling |
|---|---|---|---|
| The question it asks | “How does this work?” | “What does this cost?” | “What is each part worth?” |
| What it looks at | Steps, sequence, hand-offs and roles | Activities and the resources they consume | Information, actions, systems and people, and what each contributes |
| What it measures | Flow: cycle time, waits, bottlenecks | Cost, traced to activities through cost drivers | Revenue, cost and friction, risk, option value and information value |
| What it misses | What any step is worth | Revenue, risk, options and information | It builds on the map and the costs rather than replacing them |
| What you get | A process map or flowchart | A cost per activity, product or customer | An Economic Value Profile: a value ledger for the process |
| Best used for | Understanding and standardising how work is done | Pricing, profitability and cost reduction | Deciding where to invest, redesign or apply AI |
Process mapping
Business process modelling captures the steps, hand-offs and roles in a process, often as a flowchart or swimlane diagram. It is the right starting point for understanding and standardising work, and for finding where it waits. It says nothing about whether a step is worth doing.
Activity-based costing
Activity-based costing assigns costs to the activities that consume resources, so you can see what a process, product or customer really costs. It is strong for pricing and cost reduction, but it ignores revenue, risk, options and information.
Economic Process Modelling
EPM decomposes a process into information, actions, systems and people, then scores each for revenue, cost and friction, risk, option value and information value. It shows where value is created, destroyed and left on the table.
Efficiency is indifferent to whether the output was worth producing
Traditional methods measure what a process consumes: time, headcount, cost per transaction. Judge a programme on those alone and you can automate a report nobody reads, or streamline an approval whose risk rationale nobody has reviewed in years, and call it a success.
EPM changes the frame. Value drags, steps that cost more than they contribute, become visible. So does unrealised value: data a process creates and then throws away. And so do misaligned components, such as a person doing a system’s job.
The full EPM methodThey work together
EPM doesn’t throw away process mapping or costing. In LINQ you map the process, LINQ calculates time, cost, capacity and carbon as you build, and EPM adds the value side, all in one model.
- Map the information, actions, systems and people
- Quantify time, cost and capacity as you model
- Value each component through the five lenses
- Compare current and future state before you fund change
Frequently asked questions
What is Economic Process Modelling?
Economic Process Modelling (EPM) is the discipline of decomposing a business process into its constituent information, actions, systems and people, then attributing their contributions to revenue, cost, risk, optionality and information value. It shows how the way you work creates, and destroys, economic value.
Is EPM a replacement for business process modelling?
No. EPM starts where process modelling stops. You still map how the work happens, then you value each part of it. LINQ does both in one model: it calculates time, cost, capacity and carbon as you map, and EPM adds the value side.
How is EPM different from activity-based costing?
Activity-based costing traces what a process spends. EPM also attributes revenue, risk and option value, and treats the information a process produces as an asset. A step can be cheap and still destroy value, or expensive and well worth it; costing alone cannot tell the two apart.
Do we need precise financial data to use EPM?
No. EPM uses financial measures where they are available and other value measures where direct monetary valuation is impractical, for example in processes that do not generate revenue. Components are scored comparatively, for directional clarity rather than false precision.
Why does this matter for AI?
Automation opportunity is not economic opportunity. The default AI roadmap looks for high-volume, repetitive work to automate. EPM looks for where value changes, and shows where human judgement is itself the valuable component. The highest-volume automation candidates and the highest-value transformation candidates are rarely the same.
Who developed EPM?
EPM was developed with Doug Laney, who spent more than two decades as a VP Distinguished Analyst at Gartner and created Infonomics. EPM is the direct extension of that thinking: if information has economic value, so do the processes that create, use and discard it.
New to the terms? See the EPM glossary.
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